private in a deal that values the firm at $69 million. learning tree shares, rising $.89 or 21% to $5.14 a share, shareholders would get $5.25 a share. office depot spiking higher as activist investment fund "starboard value" unveiled a 13% stake in the retailer. starboard calls office depot shares, "deeply undervalued"... the stock up 5% today to $2.60 a share. morgan stanley upgrading shares of tesla motors, sending the stock zooming higher, delivery delays have plagued the electric vehicle maker, but morgan says tesla has the ability to significantly outperform. tesla shares jumped 7% to $32.54. morgan stanley also lifted its price target on the shares to $50, from $45. vivus shares gaining some weight, as the company rolled out its obesity drug, ahead of schedule. quseemiah, was supposed to debut next quarter, the company says it's now available for prescription. that early release, sending vivus shares up 4%, to $3.85, a one-month prescription costs $184.